GlassMap
Location sharing. Acquired by Groupon in 2013.
http://ansibletechnologies.com
Glassmap was acquired by Groupon (NASDAQ: GRPN) in January 2013.
Glassmap is a simple, beautiful way to show your friends where you are and what you are up to! Use it to coordinate meetings and hangouts, keep up with loved ones, and serendipitously discover who and what is around you. Available for iOS and Android phones.
Our mission is to make a clearer world and help people find life via Glassmap!
Glassmap is backed by YCombinator and other top investors.